// Copyright (c) 2013, Hannes Würfel <hannes.wuerfel@student.hpi.uni-potsdam.de>
// Computer Graphics Systems Group at the Hasso-Plattner-Institute, Germany
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//   * Redistributions of source code must retain the above copyright notice,
//     this list of conditions and the following disclaimer.
//   * Redistributions in binary form must reproduce the above copyright
//     notice, this list of conditions and the following disclaimer in the
//     documentation and/or other materials provided with the distribution.
//   * Neither the name of the Computer Graphics Systems Group at the
//     Hasso-Plattner-Institute (HPI), Germany nor the names of its
//     contributors may be used to endorse or promote products derived from
//     this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
// POSSIBILITY OF SUCH DAMAGE.

#include "TruncatedABufferEffect.h"

TruncatedABufferEffect::TruncatedABufferEffect(ID3D11Device* device, const std::string& filename)
    : OITEffect(device, filename)
{
    m_storeFragmentsTechnique = m_fx->GetTechniqueByName("StoreFragments");
    m_sortFragmentsTechnique = m_fx->GetTechniqueByName("SortFragments");
    m_viewportWidth = m_fx->GetVariableByName("gViewportWidth")->AsScalar();
    m_backgroundTex = m_fx->GetVariableByName("gBackgroundTex")->AsShaderResource();
    m_headPointerBufferSRV = m_fx->GetVariableByName("headPointerBufSRV")->AsShaderResource();
    m_nodesBufferSRV = m_fx->GetVariableByName("nodesBufSRV")->AsShaderResource();
    m_headPointerBufferUAV = m_fx->GetVariableByName("headpointerBuf")->AsUnorderedAccessView();
    m_nodesBufferUAV = m_fx->GetVariableByName("nodesBuf")->AsUnorderedAccessView();
}

TruncatedABufferEffect::~TruncatedABufferEffect()
{

}

ID3DX11EffectTechnique* TruncatedABufferEffect::storeFragmentsTech()
{
    return m_storeFragmentsTechnique;
}

ID3DX11EffectTechnique* TruncatedABufferEffect::sortFragmentsTech()
{
    return m_sortFragmentsTechnique;
}

void TruncatedABufferEffect::setViewportWidth(int viewportWidth)
{
    m_viewportWidth->SetInt(viewportWidth);
}

void TruncatedABufferEffect::setBackgroundTexture(ID3D11ShaderResourceView* tex)
{
    m_backgroundTex->SetResource(tex);
}

void TruncatedABufferEffect::setInputHeadPointerBuffer(ID3D11ShaderResourceView* buf)
{
    m_headPointerBufferSRV->SetResource(buf);
}

void TruncatedABufferEffect::setInputNodesBuffer(ID3D11ShaderResourceView* buf)
{
    m_nodesBufferSRV->SetResource(buf);
}

void TruncatedABufferEffect::setOutputHeadPointerBuffer(ID3D11UnorderedAccessView* buf)
{
    m_headPointerBufferUAV->SetUnorderedAccessView(buf);
}

void TruncatedABufferEffect::setOutputNodesBuffer(ID3D11UnorderedAccessView* buf)
{
    m_nodesBufferUAV->SetUnorderedAccessView(buf);
}